CN202615885U - Novel cable core - Google Patents

Abstract

The utility model relates to a novel cable core, comprising an insulating layer and a core layer, wherein the core layer consists of a carbon fiber composite material and a resin system and the insulating layer is circumferentially wrapped on an outer layer of the core layer. The novel cable core is characterized in that a plurality of strands of carbon fiber are impregnated in the resin system and then twisted into a strand and a twisting twist-angle scope is 1-10 DEG. By adopting the above technology scheme, compared with conventional steel-core cables, self weight is mitigated quarter, tensile strength of the cable core is raised and resistance of harsh environments such as various wind and rainstorm is greatly raised. The service life is obviously increased and the novel cable core can satisfy places having a large overhead span. Overhead sag is reduced. Rod erecting height can be reduced and erecting cost is greatly reduced.

Description

A kind of novel cable core

Technical field

The utility model relates to the electric power transportation art, especially a kind of novel cable core.

Background technology

Electric power is carried at a distance, adopts cable usually, and a kind of common overhead cable adopts steel reinforced aluminium conductor usually, and it is made up of two piths of steel wire and conduction aluminium wire.The effect of steel wire is a unsettled load of bearing whole cable, and aluminium wire plays electric action.The advantage of steel wire is to have strong bearing capacity, but that shortcoming is self weight is big, and tensile strength is little, and the thermal coefficient of expansion of steel core is big.If considering electric wire again has ice and snow or bears strong wind action; Opposing external force ability; The suspended scaffold that has heavy cable is had very high requirement, require suspended scaffold not only strong, and rigidity to be got well; And the height of suspended scaffold is enough high, and this electric power is carried and brought great cost burden.Therefore be badly in need of that a kind of own wt is light, tensile strength is big, high temperature resistant, corrosion resistant cable, what development was very fast now is carbon fiber cable.But existing carbon fiber electrically cable core is prone to loosely be unfavorable for secondary twisting and solidify that fatigue performance is poor simultaneously, is prone to the somewhere defective takes place and the phenomenon that causes wire fracture.

The utility model content

To above-mentioned existing problems, the utility model provides a kind of novel cable core, through the change of structure, can effectively solve loose problem, improves fatigue performance simultaneously.

In order to reach above purpose; The utility model is taked following technical scheme, and a kind of novel cable core comprises insulating barrier and sandwich layer; Said sandwich layer is made up of carbon fibre composite and resin system; Said insulating barrier hoop is wrapped in the sandwich layer skin, it is characterized in that: twist into thigh after the multi-beam carbon-fiber impregnating resin system, the angle of twist scope of twisting is 1-10 °.

By the carbon fiber cable that carbon fiber complex core is processed, compare common steel core cable, not only own wt alleviates 1/4th; Also improved the tensile strength of cable core, improved adverse circumstances abilities such as the anti-various strong wind of carbon fiber cable, heavy rain greatly, useful life is obviously long; Can also satisfy the built on stilts big place of span; Built on stilts degree of speeding is reduced, can reduce the hack lever height, the bigger reduction set up cost.

Description of drawings

Fig. 1 is the structural representation of the utility model

Fig. 2 is the structural representation of the utility model sub-thread cable core

1, cable core 2, insulating barrier 3, sandwich layer 4, carbon fiber 5, resin system.

Embodiment

Below in conjunction with accompanying drawing the utility model is described further.

Embodiment one

As depicted in figs. 1 and 2; A kind of novel cable core; Comprise insulating barrier 2 and sandwich layer 3, said sandwich layer 3 is made up of carbon fibre composite 4 and resin system 5, and said insulating barrier hoop is wrapped in the sandwich layer skin; It is characterized in that: twist into thigh after the multi-beam carbon-fiber impregnating resin system, the angle of twist scope of twisting is 1-10 °.Insulating barrier is generally glass yarn or cloth.Said carbon fibre composite is epoxy resin, nano expanded graphite and carbon fiber high-strength conducting composite material; At the expanded graphite more than 100 times with strengthen the body carbon fiber and forms, the mass parts of each component is said composite material by epoxy resin, expansion multiple: 100 parts of epoxy resin, expansion multiple are on 1～30 part on 1～8 part of the expanded graphite more than 100 times and enhancing body carbon fiber; Said enhancing body carbon fiber is the carbon fiber complex core that carbon fiber wire, ceramic fibre silk and glass mat are processed by thermosetting resin cured typing, and said carbon fiber wire is the filament of being processed by polyacrylonitrile-based carbon fibre cellulose mixture carbon fiber.

Embodiment two

With a kind of novel cable core of embodiment one, its difference is: this novel cable core is by 1 stranded composition of several strands of cables core, and direction of lay is opposite with the sub-thread twist direction or identical.

Claims (1)

1. novel cable core; Comprise insulating barrier and sandwich layer, said sandwich layer is made up of carbon fibre composite and resin system, and said insulating barrier hoop is wrapped in the sandwich layer skin; It is characterized in that: twist into thigh after the multi-beam carbon-fiber impregnating resin system, the angle of twist scope of twisting is 1-10 °.

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